diff --git a/src/network/socket/qnativesocketengine_unix.cpp b/src/network/socket/qnativesocketengine_unix.cpp
index f12aedef35..fe7864d7f3 100644
--- a/src/network/socket/qnativesocketengine_unix.cpp
+++ b/src/network/socket/qnativesocketengine_unix.cpp
@@ -127,6 +127,21 @@ static inline void qt_socket_getPortAndAddress(const qt_sockaddr *s, quint16 *po
     }
 }
 
+static inline uint makeScopeId(const QHostAddress &addr)
+{
+    QString scopeid = addr.scopeId();
+    if (scopeid.isEmpty())
+        return 0;
+
+    bool ok;
+    uint id = scopeid.toInt(&ok);
+#ifndef QT_NO_IPV6IFNAME
+    if (!ok)
+        id = ::if_nametoindex(scopeid.toLatin1());
+#endif
+    return id;
+}
+
 /*! \internal
 
     Creates and returns a new socket descriptor of type \a socketType
@@ -382,17 +397,8 @@ bool QNativeSocketEnginePrivate::nativeConnect(const QHostAddress &addr, quint16
         memset(&sockAddrIPv6, 0, sizeof(sockAddrIPv6));
         sockAddrIPv6.sin6_family = AF_INET6;
         sockAddrIPv6.sin6_port = htons(port);
+        sockAddrIPv6.sin6_scope_id = makeScopeId(addr);
 
-        QString scopeid = addr.scopeId();
-
-        if (!scopeid.isEmpty()) {
-            bool ok;
-            sockAddrIPv6.sin6_scope_id = scopeid.toInt(&ok);
-#ifndef QT_NO_IPV6IFNAME
-            if (!ok)
-                sockAddrIPv6.sin6_scope_id = ::if_nametoindex(scopeid.toLatin1());
-#endif
-        }
         Q_IPV6ADDR ip6 = addr.toIPv6Address();
         memcpy(&sockAddrIPv6.sin6_addr.s6_addr, &ip6, sizeof(ip6));
 
@@ -501,16 +507,8 @@ bool QNativeSocketEnginePrivate::nativeBind(const QHostAddress &address, quint16
         memset(&sockAddrIPv6, 0, sizeof(sockAddrIPv6));
         sockAddrIPv6.sin6_family = AF_INET6;
         sockAddrIPv6.sin6_port = htons(port);
-        QString scopeid = address.scopeId();
+        sockAddrIPv6.sin6_scope_id = makeScopeId(address);
 
-        if (!scopeid.isEmpty()) {
-            bool ok;
-            sockAddrIPv6.sin6_scope_id = scopeid.toInt(&ok);
-#ifndef QT_NO_IPV6IFNAME
-            if (!ok)
-                sockAddrIPv6.sin6_scope_id = ::if_nametoindex(scopeid.toLatin1());
-#endif
-        }
         Q_IPV6ADDR tmp = address.toIPv6Address();
         memcpy(&sockAddrIPv6.sin6_addr.s6_addr, &tmp, sizeof(tmp));
         sockAddrSize = sizeof(sockAddrIPv6);
@@ -918,19 +916,10 @@ qint64 QNativeSocketEnginePrivate::nativeSendDatagram(const char *data, qint64 l
         memset(&sockAddrIPv6, 0, sizeof(sockAddrIPv6));
         sockAddrIPv6.sin6_family = AF_INET6;
         sockAddrIPv6.sin6_port = htons(port);
+        sockAddrIPv6.sin6_scope_id = makeScopeId(host);
 
         Q_IPV6ADDR tmp = host.toIPv6Address();
         memcpy(&sockAddrIPv6.sin6_addr.s6_addr, &tmp, sizeof(tmp));
-        QString scopeid = host.scopeId();
-
-        if (!scopeid.isEmpty()) {
-            bool ok;
-            sockAddrIPv6.sin6_scope_id = scopeid.toInt(&ok);
-#ifndef QT_NO_IPV6IFNAME
-            if (!ok)
-                sockAddrIPv6.sin6_scope_id = ::if_nametoindex(scopeid.toLatin1());
-#endif
-        }
         sockAddrSize = sizeof(sockAddrIPv6);
         sockAddrPtr = (struct sockaddr *)&sockAddrIPv6;
     } else if (host.protocol() == QAbstractSocket::IPv4Protocol) {